diff --git a/contrib/completion/zsh/_docker b/contrib/completion/zsh/_docker
index 3f96f00ef7..faf17b2bea 100644
--- a/contrib/completion/zsh/_docker
+++ b/contrib/completion/zsh/_docker
@@ -1,58 +1,118 @@
-#compdef docker 
+#compdef docker
 #
 # zsh completion for docker (http://docker.com)
 #
-# version:  0.2.2
-# author:   Felix Riedel
-# license:  BSD License
+# version:  0.3.0
 # github:   https://github.com/felixr/docker-zsh-completion
 #
+# contributers:
+#   - Felix Riedel
+#   - Vincent Bernat
+#
+# license:
+#
+# Copyright (c) 2013, Felix Riedel
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the <organization> nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
 
 __parse_docker_list() {
-    sed -e '/^ID/d' -e 's/[ ]\{2,\}/|/g' -e 's/ \([hdwm]\)\(inutes\|ays\|ours\|eeks\)/\1/' | awk ' BEGIN {FS="|"} { printf("%s:%7s, %s\n", $1, $4, $2)}'
+        awk '
+NR == 1 {
+    idx=1;i=0;f[i]=0
+    header=$0
+    while ( match(header, /  ([A-Z]+|[A-Z]+ [A-Z]+)/) ) {
+        idx += RSTART+1
+        f[++i]=idx
+        header = substr($0,idx)
+    }
+    f[++i]=999
+}
+
+NR > 1 '"$1"' {
+    for(j=0;j<i;j++) {
+        x[j] = substr($0, f[j], f[j+1]-f[j]-1)
+        gsub(/[ ]+$/, "", x[j])
+    }
+    printf("%s:%7s, %s\n", x[0], x[3], x[1])
+    if (x[6] != "") {
+       split(x[6], names, /,/)
+       for (name in names) printf("%s:%7s, %s\n", names[name], x[3], x[1])
+    }
+}
+'| sed -e 's/ \([hdwm]\)\(inutes\|ays\|ours\|eeks\)/\1/'
 }
 
 __docker_stoppedcontainers() {
     local expl
-    declare -a stoppedcontainers 
-    stoppedcontainers=(${(f)"$(docker ps -a | grep --color=never 'Exit' |  __parse_docker_list )"})
-    _describe -t containers-stopped "Stopped Containers" stoppedcontainers 
+    declare -a stoppedcontainers
+    stoppedcontainers=(${(f)"$(_call_program commands docker ps -a |  __parse_docker_list '&& / Exit/')"})
+    _describe -t containers-stopped "Stopped Containers" stoppedcontainers "$@"
 }
 
 __docker_runningcontainers() {
     local expl
-    declare -a containers 
+    declare -a containers
 
-    containers=(${(f)"$(docker ps | __parse_docker_list)"})
-    _describe -t containers-active "Running Containers" containers 
+    containers=(${(f)"$(_call_program commands docker ps | __parse_docker_list)"})
+    _describe -t containers-active "Running Containers" containers "$@"
 }
 
 __docker_containers () {
-    __docker_stoppedcontainers 
-    __docker_runningcontainers
+    __docker_stoppedcontainers "$@"
+    __docker_runningcontainers "$@"
 }
 
 __docker_images () {
     local expl
     declare -a images
-    images=(${(f)"$(docker images | awk '(NR > 1){printf("%s\\:%s\n", $1,$2)}')"})
-    images=($images ${(f)"$(docker images | awk '(NR > 1){printf("%s:%-15s in %s\n", $3,$2,$1)}')"})
+    images=(${(f)"$(_call_program commands docker images | awk '(NR > 1 && $1 != "<none>"){printf("%s", $1);if ($2 != "<none>") printf("\\:%s", $2); printf("\n")}')"})
+    images=($images ${(f)"$(_call_program commands docker images | awk '(NR > 1){printf("%s:%-15s in %s\n", $3,$2,$1)}')"})
     _describe -t docker-images "Images" images
 }
 
 __docker_tags() {
     local expl
     declare -a tags
-    tags=(${(f)"$(docker images | awk '(NR>1){print $2}'| sort | uniq)"})
+    tags=(${(f)"$(_call_program commands docker images | awk '(NR>1){print $2}'| sort | uniq)"})
     _describe -t docker-tags "tags" tags
 }
 
+__docker_repositories_with_tags() {
+    if compset -P '*:'; then
+        __docker_tags
+    else
+        __docker_repositories -qS ":"
+    fi
+}
+
 __docker_search() {
     # declare -a dockersearch
     local cache_policy
     zstyle -s ":completion:${curcontext}:" cache-policy cache_policy
     if [[ -z "$cache_policy" ]]; then
-        zstyle ":completion:${curcontext}:" cache-policy __docker_caching_policy 
+        zstyle ":completion:${curcontext}:" cache-policy __docker_caching_policy
     fi
 
     local searchterm cachename
@@ -60,14 +120,14 @@ __docker_search() {
     cachename=_docker-search-$searchterm
 
     local expl
-    local -a result 
+    local -a result
     if ( [[ ${(P)+cachename} -eq 0 ]] || _cache_invalid ${cachename#_} ) \
         && ! _retrieve_cache ${cachename#_}; then
         _message "Searching for ${searchterm}..."
-        result=(${(f)"$(docker search ${searchterm} | awk '(NR>2){print $1}')"})
+        result=(${(f)"$(_call_program commands docker search ${searchterm} | awk '(NR>2){print $1}')"})
         _store_cache ${cachename#_} result
-    fi 
-    _wanted dockersearch expl 'Available images' compadd -a result 
+    fi
+    _wanted dockersearch expl 'Available images' compadd -a result
 }
 
 __docker_caching_policy()
@@ -81,8 +141,8 @@ __docker_caching_policy()
 __docker_repositories () {
     local expl
     declare -a repos
-    repos=(${(f)"$(docker images | sed -e '1d' -e 's/[ ].*//' | sort | uniq)"})
-    _describe -t docker-repos "Repositories" repos
+    repos=(${(f)"$(_call_program commands docker images | sed -e '1d' -e 's/[ ].*//' | sort | uniq)"})
+    _describe -t docker-repos "Repositories" repos "$@"
 }
 
 __docker_commands () {
@@ -91,15 +151,15 @@ __docker_commands () {
 
     zstyle -s ":completion:${curcontext}:" cache-policy cache_policy
     if [[ -z "$cache_policy" ]]; then
-        zstyle ":completion:${curcontext}:" cache-policy __docker_caching_policy 
+        zstyle ":completion:${curcontext}:" cache-policy __docker_caching_policy
     fi
 
     if ( [[ ${+_docker_subcommands} -eq 0 ]] || _cache_invalid docker_subcommands) \
-        && ! _retrieve_cache docker_subcommands; 
+        && ! _retrieve_cache docker_subcommands;
     then
-        _docker_subcommands=(${${(f)"$(_call_program commands 
+        _docker_subcommands=(${${(f)"$(_call_program commands
         docker 2>&1 | sed -e '1,6d' -e '/^[ ]*$/d' -e 's/[ ]*\([^ ]\+\)\s*\([^ ].*\)/\1:\2/' )"}})
-        _docker_subcommands=($_docker_subcommands 'help:Show help for a command') 
+        _docker_subcommands=($_docker_subcommands 'help:Show help for a command')
         _store_cache docker_subcommands _docker_subcommands
     fi
     _describe -t docker-commands "docker command" _docker_subcommands
@@ -108,100 +168,206 @@ __docker_commands () {
 __docker_subcommand () {
     local -a _command_args
     case "$words[1]" in
-        (attach|wait)
-            _arguments ':containers:__docker_runningcontainers'
+        (attach)
+            _arguments \
+                '--no-stdin[Do not attach stdin]' \
+                '--sig-proxy[Proxify all received signal]' \
+                ':containers:__docker_runningcontainers'
             ;;
         (build)
             _arguments \
-                '-t=-:repository:__docker_repositories' \
+                '--no-cache[Do not use cache when building the image]' \
+                '-q[Suppress verbose build output]' \
+                '--rm[Remove intermediate containers after a successful build]' \
+                '-t=-:repository:__docker_repositories_with_tags' \
                 ':path or URL:_directories'
             ;;
         (commit)
             _arguments \
+                '--author=-[Author]:author: ' \
+                '-m=-[Commit message]:message: ' \
+                '--run=-[Configuration automatically applied when the image is run]:configuration: ' \
                 ':container:__docker_containers' \
-                ':repository:__docker_repositories' \
-                ':tag: '
+                ':repository:__docker_repositories_with_tags'
             ;;
-        (diff|export|logs)
+        (cp)
+            _arguments \
+                ':container:->container' \
+                ':hostpath:_files'
+            case $state in
+                (container)
+                    if compset -P '*:'; then
+                        _files
+                    else
+                        __docker_containers -qS ":"
+                    fi
+                    ;;
+            esac
+            ;;
+        (diff|export)
             _arguments '*:containers:__docker_containers'
             ;;
         (history)
-            _arguments '*:images:__docker_images'
+            _arguments \
+                '--no-trunc[Do not truncate output]' \
+                '-q[Only show numeric IDs]' \
+                '*:images:__docker_images'
             ;;
         (images)
             _arguments \
                 '-a[Show all images]' \
+                '--no-trunc[Do not truncate output]' \
+                '-q[Only show numeric IDs]' \
+                '--tree[Output graph in tree format]' \
+                '--viz[Output graph in graphviz format]' \
                 ':repository:__docker_repositories'
             ;;
         (inspect)
-            _arguments '*:containers:__docker_containers'
+            _arguments \
+                '--format=-[Format the output using the given go template]:template: ' \
+                '*:containers:__docker_containers'
             ;;
-        (history)
-            _arguments ':images:__docker_images'
+        (import)
+            _arguments \
+                ':URL:(- http:// file://)' \
+                ':repository:__docker_repositories_with_tags'
+            ;;
+        (info)
+            ;;
+        (import)
+            _arguments \
+                ':URL:(- http:// file://)' \
+                ':repository:__docker_repositories_with_tags'
+            ;;
+        (insert)
+            _arguments '1:containers:__docker_containers' \
+                       '2:URL:(http:// file://)' \
+                       '3:file:_files'
             ;;
         (kill)
             _arguments '*:containers:__docker_runningcontainers'
             ;;
+        (load)
+            ;;
+        (login)
+            _arguments \
+                '-e=-[Email]:email: ' \
+                '-p=-[Password]:password: ' \
+                '-u=-[Username]:username: ' \
+                ':server: '
+            ;;
+        (logs)
+            _arguments \
+                '-f[Follow log output]' \
+                '*:containers:__docker_containers'
+            ;;
         (port)
-            _arguments '1:containers:__docker_runningcontainers'
+            _arguments \
+                '1:containers:__docker_runningcontainers' \
+                '2:port:_ports'
             ;;
         (start)
-            _arguments '*:containers:__docker_stoppedcontainers'
+            _arguments \
+                '-a[Attach container'"'"'s stdout/stderr and forward all signals]' \
+                '-i[Attach container'"'"'s stding]' \
+                '*:containers:__docker_stoppedcontainers'
             ;;
         (rm)
-            _arguments '-v[Remove the volumes associated to the container]' \
+            _arguments \
+                '--link[Remove the specified link and not the underlying container]' \
+                '-v[Remove the volumes associated to the container]' \
                 '*:containers:__docker_stoppedcontainers'
             ;;
         (rmi)
-            _arguments '-v[Remove the volumes associated to the container]' \
+            _arguments \
                 '*:images:__docker_images'
             ;;
-        (top)
-            _arguments '1:containers:__docker_runningcontainers'
-            ;;
         (restart|stop)
             _arguments '-t=-[Number of seconds to try to stop for before killing the container]:seconds to before killing:(1 5 10 30 60)' \
                 '*:containers:__docker_runningcontainers'
             ;;
         (top)
-            _arguments ':containers:__docker_runningcontainers'
+            _arguments \
+                '1:containers:__docker_runningcontainers' \
+                '(-)*:: :->ps-arguments'
+            case $state in
+                (ps-arguments)
+                    _ps
+                    ;;
+            esac
+
             ;;
         (ps)
-            _arguments '-a[Show all containers. Only running containers are shown by default]' \
-                '-h[Show help]' \
-                '--before-id=-[Show only container created before Id, include non-running one]:containers:__docker_containers' \
-            '-n=-[Show n last created containers, include non-running one]:n:(1 5 10 25 50)'
+            _arguments \
+                '-a[Show all containers]' \
+                '--before=-[Show only container created before...]:containers:__docker_containers' \
+                '-l[Show only the latest created container]' \
+                '-n=-[Show n last created containers, include non-running one]:n:(1 5 10 25 50)' \
+                '--no-trunc[Do not truncate output]' \
+                '-q[Only show numeric IDs]' \
+                '-s[Display sizes]' \
+                '--since=-[Show only containers created since...]:containers:__docker_containers'
             ;;
         (tag)
             _arguments \
                 '-f[force]'\
                 ':image:__docker_images'\
-                ':repository:__docker_repositories' \
-                ':tag:__docker_tags'
+                ':repository:__docker_repositories_with_tags'
             ;;
         (run)
             _arguments \
-                '-a=-[Attach to stdin, stdout or stderr]:toggle:(true false)' \
-                '-c=-[CPU shares (relative weight)]:CPU shares: ' \
+                '-P[Publish all exposed ports to the host]' \
+                '-a[Attach to stdin, stdout or stderr]' \
+                '-c=-[CPU shares (relative weight)]:CPU shares:(0 10 100 200 500 800 1000)' \
+                '--cidfile=-[Write the container ID to the file]:CID file:_files' \
                 '-d[Detached mode: leave the container running in the background]' \
-                '*--dns=[Set custom dns servers]:dns server: ' \
-                '*-e=[Set environment variables]:environment variable: ' \
+                '*--dns=-[Set custom dns servers]:dns server: ' \
+                '*-e=-[Set environment variables]:environment variable: ' \
                 '--entrypoint=-[Overwrite the default entrypoint of the image]:entry point: ' \
+                '*--expose=-[Expose a port from the container without publishing it]: ' \
                 '-h=-[Container host name]:hostname:_hosts' \
                 '-i[Keep stdin open even if not attached]' \
+                '--link=-[Add link to another container]:link:->link' \
+                '--lxc-conf=-[Add custom lxc options]:lxc options: ' \
                 '-m=-[Memory limit (in bytes)]:limit: ' \
-                '*-p=-[Expose a container''s port to the host]:port:_ports' \
-                '-t=-[Allocate a pseudo-tty]:toggle:(true false)' \
+                '--name=-[Container name]:name: ' \
+                '*-p=-[Expose a container'"'"'s port to the host]:port:_ports' \
+                '--privileged[Give extended privileges to this container]' \
+                '--rm[Remove intermediate containers when it exits]' \
+                '--sig-proxy[Proxify all received signal]' \
+                '-t[Allocate a pseudo-tty]' \
                 '-u=-[Username or UID]:user:_users' \
                 '*-v=-[Bind mount a volume (e.g. from the host: -v /host:/container, from docker: -v /container)]:volume: '\
                 '--volumes-from=-[Mount volumes from the specified container]:volume: ' \
+                '-w=-[Working directory inside the container]:directory:_directories' \
                 '(-):images:__docker_images' \
                 '(-):command: _command_names -e' \
                 '*::arguments: _normal'
-                ;;
+
+            case $state in
+                (link)
+                    if compset -P '*:'; then
+                        _wanted alias expl 'Alias' compadd -E ""
+                    else
+                        __docker_runningcontainers -qS ":"
+                    fi
+                    ;;
+            esac
+
+            ;;
         (pull|search)
             _arguments ':name:__docker_search'
             ;;
+        (push)
+            _arguments ':repository:__docker_repositories_with_tags'
+            ;;
+        (save)
+            _arguments \
+                ':images:__docker_images'
+            ;;
+        (wait)
+            _arguments ':containers:__docker_runningcontainers'
+            ;;
         (help)
             _arguments ':subcommand:__docker_commands'
             ;;
@@ -212,24 +378,31 @@ __docker_subcommand () {
 }
 
 _docker () {
+    # Support for subservices, which allows for `compdef _docker docker-shell=_docker_containers`.
+    # Based on /usr/share/zsh/functions/Completion/Unix/_git without support for `ret`.
+    if [[ $service != docker ]]; then
+        _call_function - _$service
+        return
+    fi
+
     local curcontext="$curcontext" state line
     typeset -A opt_args
 
     _arguments -C \
       '-H=-[tcp://host:port to bind/connect to]:socket: ' \
          '(-): :->command' \
-         '(-)*:: :->option-or-argument' 
+         '(-)*:: :->option-or-argument'
 
     if (( CURRENT == 1 )); then
 
     fi
-    case $state in 
+    case $state in
         (command)
             __docker_commands
             ;;
         (option-or-argument)
             curcontext=${curcontext%:*:*}:docker-$words[1]:
-            __docker_subcommand 
+            __docker_subcommand
             ;;
     esac
 }